Cultivator



(No Model,

F. A. HEAD.

GULTIVATOR.

180.408,58?. l Patented May 21, 1889.

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IIIIIUII lll UNITED STATES PATENT OEEICE.

FREDERICK A. HEAD, OF ROOK ISLAND, ILLINOIS.

C U LT l VATO R.

SPECIFICATION forming part of Letters Patent No. 403,58*?, dated May 21,1889.

Application filed January 24, 1889. Serial No. 297,401. (No model.)

To all whom, it may concern:

Be it known that I, FREDERICK A. HEAD, residing at Rock Island, in thecounty of Rock Island and State of Illinois, and a citizen of the UnitedStates, have invented a new and useful Improvement in Cultivators, ofwhich the following is a specification, reference being had 'to theaccompanying drawings, inwhich Figure 1 is a perspective of so much of acultivator as is necessary to illustrate my,

invention, showing a coil-spring. Fig. 2 is a similar view showinganother form of spring. Fig. 3 is an enlarged detail showing piece G.Fig. et shows a modification of the bracket.

It is common to use coil-springs in cultivators to partlycounter-balance the weight of the shovel-beams and shovels. It is alsocommon to use iiat springs for the same purpose.

The object of my invention is to so construct a cultivator thatdifferent forms of springs can be used with the same cultivator simplyby removing one kind of spring and inserting another kind of spring,which I aocomplish as illustrated in the drawings and hereinafterdescribed.

That which I claim as new will be pointed out in the claims.

In the drawings, A represen ts the upper horizontal part of an archedaxle.

B is a vertical portion of the axle.

C is a casting provided with a socket to receive the partA and with asocket to receive the upper end of the vertical part, which parts A Bare secured in place by bolts or screws. The lower end of B is securedto the wheelspindle D. Projecting from the outside of the casting C isan arm or bracket, a, and its outer end is provided, as shown, with afiattened enlargement, b, in which are holes c.

E is a sleeve or pipe-box on the wlIeel-spindle, with which is conecteda vertical tubular piece, d.

F is a casting to which the forward end of one of the shovel-beams is tobe secured, as usual. This casting is pivoted upon the part (Z, to givethe beam a lateral motion, as usual.

G is a casting provided with a central hole, e, to receive a pin. On theunder side there is a slot, f, which engages with a rib, g, on thecasting F.

7L are two ears which are a part of the casting G.

H is a rod, the lower end of which is pivoted to the ears h, andtheupper end passes through one of the holes c in the part b I is acoil-spring, the upper end of which comes in contact with the under sideof b, and the lower end rests upon a shoulder near the lower end of therod II.

The casting G is held in place by the pin which passes through the earsat the forward end of the casting F and through the part d.

As shown in Fig. l, the spring is located forward of the joint whichcouples the beam to the axle, and the action of the spring has atendency to counterbalance the Weight of the beam and shovels. If it bedesired to use a iat spring instead of the coil-spring, the

by bolts to the part b, as shown in Fig. 2.

The other end of this spring is, as shown, provided with a slot, fi.

K is a connecting-bar, one end of which is pivoted to the ears h. Theother end passes through the slot i, and is held by a pin which passesthrough it.

As shown in Fig. 2, the pulling action of the spring J has a tendency tocounterbalance the shovel-beam and shovels.

With my improvement the springs are interchangeable, the other parts ofthe cultivator remaining the same, and a manufacturer or dealer canfurnish buyers with two styles of cultivators from the same stock bykeeping on hand the two kinds of springs.

The arm or bracket a, which is provided with the enlargement b, might bemade separate from the socketed casting C, and be bolted or otherwisesecured to the vertical part of the arch, the gist of this part of myinvention consisting in providing the vertical part of the arch of thecultivator with a bracket adapted to be used in connection either with acoil-spring, I, or a spring of another form, similar to J.

In Fig. 4 I have shown a bracket made independent of the casting C, andadapted to be secured to the vertical part of the arch.

IOO

Instead of alat spring, J, a spring of some other'known form might beused, arranged to operate in the same manner and adapted to be connectedat one end to the arm or bracket a, and at the other end to the castingGr. If desired, a link might be used between the arm K and ears h.

What I claim as new, and desire to secur by Letters Patent, is asfollows:

l. In a cultivator, a removable piece, as G, adapted to be connectedeither with a rod, as H, or with a bar, as K, substantially as and forthe purpose specified.

2. In a cultivator, an arm or bracket, as a, adapted to be secured tothe arched axle, and

a casting, as G, adapted to be connected with the joint which -couplesthe shovel-beam to the axle, whereby either one of two forms of springsI and J can be used at pleasure in the substantially as and for thepurpose speciied. 2 5

FREDERICK A. HEAD.

Witnesses: L. C. BLANDING,

G. TEGELER.

